<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>OpenSumi IDE</title>
    <style>
      body {
        margin: 0;
        background-color: #2a2a2a;
        user-select: none;
      }
    </style>
  </head>
  <body>
    <div id="main"></div>
  </body>
</html>
